// -Bit 3 to 5: bit set if TOF < fTimeGate (each bit corresponds
// to a different efficiency-purity point of the photon identification)
// -Bit 6 to 9: bit set if Principal Components are
-// inside an ellipse defined by fX_center, fY_center, fA, fB, fAngle
+// inside an ellipse defined by the parameters a, b, c, x0 and y0.
// (each bit corresponds to a different efficiency-purity point of the
-// photon identification)
+// photon identification)
+// The PCA (Principal components analysis) needs a file that contains
+// a previous analysis of the correlations between the particles. This
+// file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis don for
+// energies between 0.5 and 100 GeV.
// A calibrated energy is calculated. The energy of the reconstructed
-// cluster is corrected with the formula A + B * E + C * E^2, whose parameters
-// where obtained thourgh the study of the reconstructed energy
-// distribution of monoenergetic photons.
-//
+// cluster is corrected with the formula A + B * E + C * E^2, whose
+// parameters where obtained thourgh the study of the reconstructed
+// energy distribution of monoenergetic photons.
//
+// All the parameters (RCPV(6 rows-3 columns),TOF(6r-3c),PCA(5r-4c)
+// and calibration(1r-3c))are stored in a file called
+// $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is
+// initialized, this parameters are copied to a Matrix (18,4), a
+// TMatrixD object.
//
// use case:
-// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root","v1")
+// root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root")
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // reading headers from file galice1.root and create RecParticles with title v1
- // TrackSegments and RecPoints with title "v1" are used
-// // set file name for the branch RecParticles
+// // reading headers from file galice1.root and create RecParticles
+ // TrackSegments and RecPoints are used
+// // set file name for the branch RecParticles
// root [1] p->ExecuteTask("deb all time")
-// // available options
-// // "deb" - prints # of reconstructed particles
-// // "deb all" - prints # and list of RecParticles
-// // "time" - prints benchmarking results
+// // available options
+// // "deb" - prints # of reconstructed particles
+// // "deb all" - prints # and list of RecParticles
+// // "time" - prints benchmarking results
//
-// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1","v0")
+// root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE)
// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // reading headers from file galice1.root and create RecParticles with title v1
- // RecPoints and TrackSegments with title "v0" are used
+// //Split mode.
// root [3] p2->ExecuteTask()
//
-// There are two possible principal files available to do the analysis.
-// One for energy ranges from 0.5 to 5 GeV, and another
-// one from 5 to 100 GeV. This files are automatically called in function
-// of the cluster energy.
+
//*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) &
// Gustavo Conesa April 2002
-
+// PCA redesigned by Gustavo Conesa October 2002:
+// The way of using the PCA has changed. Instead of 2
+// files with the PCA, each one with different energy ranges
+// of application, we use the wide one (0.5-100 GeV), and instead
+// of fixing 3 elipses for different ranges of energy, it has been
+// studied the dependency of the ellipses parameters with the
+// energy, and they are implemented in the code as a funtion
+// of the energy.
+//
+//
+//
// --- ROOT system ---
#include "TROOT.h"
#include "TTree.h"
delete [] fX ; // Principal input
delete [] fP ; // Principal components
// delete fParameters ; // Matrix of Parameters
-// delete fParameters5 ; // Matrix of Parameters
-// delete fParameters100 ; // Matrix of Parameters
+
if (!fDefaultInit) {
}
//____________________________________________________________________________
-Double_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur)
+const Double_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur) const
{
// Get CpvtoEmcDistanceCut parameter depending on the cluster energy and
// Purity-Efficiency point (possible options "HIGH EFFICIENCY"
// EFFICIENCY by PURITY)
Int_t eff_pur = GetEffPurOption(Eff_Pur);
-
- GetAnalysisParameters(Cluster_En) ;
- if((fClusterrcpv!= -1)&&(eff_pur != -1))
- return (*fParameters)(fClusterrcpv,eff_pur) ;
+ Int_t cluster = GetClusterOption(Cluster_En) ;
+ if((cluster!= -1)&&(eff_pur != -1))
+ return (*fParameters)(cluster,eff_pur) ;
else
return 0.0;
}
//____________________________________________________________________________
-Double_t AliPHOSPIDv1::GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur)
+const Double_t AliPHOSPIDv1::GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) const
{
// Get TimeGate parameter depending on the cluster energy and
// Purity-Efficiency point (possible options "HIGH EFFICIENCY"
// EFFICIENCY by PURITY)
Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
-
- if((fCluster!= -1)&&(eff_pur != -1))
- return (*fParameters)(fCluster+3+fMatrixExtraRow,eff_pur) ;
+ Int_t cluster = GetClusterOption(Cluster_En) ;
+ if((cluster!= -1)&&(eff_pur != -1))
+ return (*fParameters)(cluster+6,eff_pur) ;
else
return 0.0;
}
//_____________________________________________________________________________
-Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
+const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const
{
// Calculates the distance between the EMC RecPoint and the PPSD RecPoint
}
//____________________________________________________________________________
-Double_t AliPHOSPIDv1::CalibratedEnergy(Float_t e){
- //It calibrates Energy depending on the recpoint energy.
-// The energy of the reconstructed
-// cluster is corrected with the formula A + B* E + C* E^2, whose parameters
-// where obtained through the study of the reconstructed energy
-// distribution of monoenergetic photons.
- Double_t enerec;
- enerec = fACalParameter + fBCalParameter * e+ fCCalParameter * e * e;
+const Double_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
+{
+// It calibrates Energy depending on the recpoint energy.
+// The energy of the reconstructed cluster is corrected with
+// the formula A + B* E + C* E^2, whose parameters where obtained
+// through the study of the reconstructed energy distribution of
+// monoenergetic photons.
+
+ Double_t p[]={0.,0.,0.};
+ Int_t i;
+ for(i=0;i<3;i++) p[i]= (*fParameters)(17,i);
+ Double_t enerec = p[0] + p[1]* e+ p[2] * e * e;
return enerec ;
}
//____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetPrincipalSign(Double_t* P, Int_t cluster, Int_t eff_pur)const
+const Int_t AliPHOSPIDv1::GetPrincipalSign(const Double_t* P,const Int_t eff_pur, const Float_t E)const
{
- //This method gives if the PCA of the particle are inside a defined ellipse
- // Get the parameters that define the ellipse stored in the
- // fParameters matrix.
- Double_t X_center = (*fParameters)(cluster+6,eff_pur) ;
- Double_t Y_center = (*fParameters)(cluster+9,eff_pur) ;
- Double_t A = (*fParameters)(cluster+12,eff_pur) ;
- Double_t B = (*fParameters)(cluster+15,eff_pur) ;
- Double_t Angle = (*fParameters)(cluster+18,eff_pur) ;
-
- Int_t prinsign;
- Double_t Dx = 0. ;
- Double_t Delta = 0. ;
- Double_t Y = 0. ;
- Double_t Y_1 = 0. ;
- Double_t Y_2 = 0. ;
- Double_t Pi = TMath::Pi() ;
- Double_t Cos_Theta = TMath::Cos(Pi*Angle/180.) ;
- Double_t Sin_Theta = TMath::Sin(Pi*Angle/180.) ;
-
- Dx = P[0] - X_center ;
- Delta = 4.*A*A*B*B* (A*A*Cos_Theta*Cos_Theta
- + B*B*Sin_Theta*Sin_Theta - Dx*Dx) ;
- if (Delta < 0.)
- {prinsign=0;}
-
- else if (Delta == 0.)
- {
- Y = Cos_Theta*Sin_Theta*(A*A - B*B)*Dx /
- (A*A*Cos_Theta*Cos_Theta + B*B*Sin_Theta*Sin_Theta) ;
- Y += Y_center ;
- if(P[1]==Y )
- {prinsign=1;}
- else
- {prinsign=0;}
- }
- else
- {
- Y_1 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx +
- TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta +
- B*B*Sin_Theta*Sin_Theta) ;
- Y_2 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx -
- TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta
- + B*B*Sin_Theta*Sin_Theta) ;
- Y_1 += Y_center ;
- Y_2 += Y_center ;
- if ((P[1]<=Y_1) && (P[1]>=Y_2))
- {prinsign=1;}
- else
- {prinsign=0;}
- }
+ //Is the particle inside de PCA ellipse?
+
+ Int_t prinsign= 0 ;
+ Double_t A = GetEllipseParameter("a", E);
+ Double_t B = GetEllipseParameter("b", E);
+ Double_t C = GetEllipseParameter("c", E);
+ Double_t X_center = GetEllipseParameter("x0", E);
+ Double_t Y_center = GetEllipseParameter("y0", E);
+
+ Double_t R = TMath::Power((P[0] - X_center)/A,2) +
+ TMath::Power((P[1] - Y_center)/B,2) +
+ C*(P[0] - X_center)*(P[1] - Y_center)/(A*B) ;
+ //3 different ellipses defined
+ if((eff_pur==2)&&(R <1./2.)) prinsign= 1;
+ if((eff_pur==1)&&(R <2. )) prinsign= 1;
+ if((eff_pur==0)&&(R <9./2.)) prinsign= 1;
+
+ if(R<0)cout<<"Error: Negative square?"<<endl;
return prinsign;
-}
-
-//____________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle)
-{
-
- // Set all ellipse parameters depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1)){
- (*fParameters)(fCluster+6 +fMatrixExtraRow,eff_pur) = x ;
- (*fParameters)(fCluster+9 +fMatrixExtraRow,eff_pur) = y ;
- (*fParameters)(fCluster+12+fMatrixExtraRow,eff_pur) = a ;
- (*fParameters)(fCluster+15+fMatrixExtraRow,eff_pur) = b ;
- (*fParameters)(fCluster+18+fMatrixExtraRow,eff_pur) = angle ;
- }
-
-}
-//__________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x)
-{
- // Set the ellipse parameter x_center depending on the custer energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+6+fMatrixExtraRow,eff_pur) = x ;
-}
-//_________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y)
-{
- // Set the ellipse parameter y_center depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+9+fMatrixExtraRow,eff_pur) = y ;
-}
-//_________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a)
-{
- // Set the ellipse parameter a depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+12+fMatrixExtraRow,eff_pur) = a ;
-}
-//________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b)
-{
- // Set the ellipse parameter b depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+15+fMatrixExtraRow,eff_pur) = b ;
}
-//________________________________________________________________________
-void AliPHOSPIDv1::SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle)
-{
- // Set the ellipse parameter angle depending on the cluster energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY"
- // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing
- // EFFICIENCY by PURITY)
-
- Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+18+fMatrixExtraRow,eff_pur) = angle ;
-}
//_____________________________________________________________________________
void AliPHOSPIDv1::SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut)
{
Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fClusterrcpv!= -1)&&(eff_pur != -1))
- (*fParameters)(fClusterrcpv,eff_pur) = cut ;
+ Int_t cluster = GetClusterOption(Cluster_En) ;
+ if((cluster!= -1)&&(eff_pur != -1))
+ (*fParameters)(cluster,eff_pur) = cut ;
}
//_____________________________________________________________________________
void AliPHOSPIDv1::SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate)
// EFFICIENCY by PURITY)
Int_t eff_pur = GetEffPurOption(Eff_Pur);
- GetAnalysisParameters(Cluster_En) ;
- if((fCluster!= -1)&&(eff_pur != -1))
- (*fParameters)(fCluster+3+fMatrixExtraRow,eff_pur) = gate ;
+ Int_t cluster = GetClusterOption(Cluster_En) ;
+ if((cluster!= -1)&&(eff_pur != -1))
+ (*fParameters)(cluster+6,eff_pur) = gate ;
}
//_____________________________________________________________________________
-void AliPHOSPIDv1::SetParameters()
- //TString OptFileName)
+void AliPHOSPIDv1::SetParameters()
{
// PCA : To do the Principal Components Analysis it is necessary
// the Principal file, which is opened here
fX = new double[7]; // Data for the PCA
fP = new double[7]; // Eigenvalues of the PCA
-
- // Set the principal and parameters files to be used
- fFileName5 = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-5.root" ;
- fFileNamePar5 = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_5.dat");
- fFileName100 = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
- fFileNamePar100 = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_100.dat");
-
- //SetPrincipalFileOptions();
- //fOptFileName);
- TFile f5( fFileName5.Data(), "read" ) ;
- fPrincipal5 = dynamic_cast<TPrincipal*> (f5.Get("principal")) ;
- f5.Close() ;
- TFile f100( fFileName100.Data(), "read" ) ;
- fPrincipal100 = dynamic_cast<TPrincipal*> (f100.Get("principal")) ;
- f100.Close() ;
- TFile f( fFileName100.Data(), "read" ) ;
+ // Open principal and parameters files to be used
+
+ fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
+ fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
+ TFile f( fFileName.Data(), "read" ) ;
fPrincipal = dynamic_cast<TPrincipal*> (f.Get("principal")) ;
f.Close() ;
- // Initialization of the Parameters matrix. In the File ParametersXX.dat
- // are all the parameters. These are introduced in a matrix of 21x3 or 22x3
- // elements (depending on the principal file 21 rows for 0.5-5 GeV and 22
- // rows for 5-100).
- // All the parameters defined in this file are, in order of row (there are
- // 3 rows per parameter): CpvtoEmcDistanceCut(if the principal file is 5-100
- // GeV then 4 rows), TimeGate and the ellipse parameters, X_center, Y_center,
- // a, b, angle. Each row of a given parameter depends on the cluster energy range
- // (wich depends on the chosen principal file)
- // Each column designs the parameters for a point in the Efficiency-Purity
- // of the photon identification P1(96%,63%), P2(87%,0.88%) and P3(68%,94%)
- // for the principal file from 0.5-5 GeV and for the other one P1(95%,79%),
- // P2(89%,90%) and P3(72%,96%)
-
- fEnergyAnalysisCut = 5.; // Energy cut to change PCA
-
- fParameters5 = new TMatrixD(21,3) ;
- fParameters100 = new TMatrixD(22,3) ;
- fParameters = new TMatrixD(22,3) ;
-
- ifstream paramFile5(fFileNamePar5) ;
-
- Int_t i,j ;
- for(i = 0; i< 21; i++){
- for(j = 0; j< 3; j++){
- paramFile5 >> (*fParameters5)(i,j) ;
- }
- }
- paramFile5.close();
-
- ifstream paramFile100(fFileNamePar100) ;
+ // Initialization of the Parameters matrix. In the File Parameters.dat
+ // are all the parameters. These are introduced in a matrix of 18x4
+ //
+ // All the parameters defined in this file are, in order of row:
+ // CpvtoEmcDistanceCut (6 rows, each one depends on the energy range of the
+ // particle, and 3 columns, each one depending on the efficiency-purity
+ // point), TimeGate (the same) and the parameters of the functions that
+ // calculate the ellipse parameters, x0,y0,a, b, c. These 5 parameters
+ // (5 rows) depend on 4 parameters (columns). Finally there is a row with
+ // the energy calibration parameters, 3 parameters.
- Int_t l,k ;
+ fParameters = new TMatrixD(18,4) ;
- for(l = 0; l< 22; l++){
- for(k = 0; k< 3; k++){
- paramFile100 >> (*fParameters100)(l,k) ;
- }
- }
- paramFile100.close();
-
- ifstream paramFile(fFileNamePar100) ;
+ ifstream paramFile(fFileNamePar) ;
Int_t h,n;
- for(h = 0; h< 22; h++){
- for(n = 0; n< 3; n++){
+ for(h = 0; h< 18; h++){
+ for(n = 0; n< 4; n++){
paramFile >> (*fParameters)(h,n) ;
}
}
paramFile.close();
-
- fCluster = -1;
- fClusterrcpv = -1;
- fMatrixExtraRow = 0;
-
- //Calibration parameters Encal = C * E^2 + B * E + A (E is the energy from cluster)
- fACalParameter = 0.0241 ;
- fBCalParameter = 1.0504 ;
- fCCalParameter = 0.000249 ;
-
- // fParameters->Print();
}
//_____________________________________________________________________________
-void AliPHOSPIDv1::GetAnalysisParameters(Float_t Cluster_En)
+const Int_t AliPHOSPIDv1::GetClusterOption(const Float_t Cluster_En) const
{
- if(Cluster_En <= fEnergyAnalysisCut){
- fPrincipal = fPrincipal5;
- fParameters = fParameters5;
- fMatrixExtraRow = 0;
- GetClusterOption(Cluster_En,kFALSE) ;
- }
- else{
- fPrincipal = fPrincipal100;
- fParameters = fParameters100;
- fMatrixExtraRow = 1;
- GetClusterOption(Cluster_En,kTRUE) ;
- }
-}
-
-//_____________________________________________________________________________
-void AliPHOSPIDv1::GetClusterOption(const Float_t Cluster_En, const Bool_t range)
-{
-
- // Gives the cluster energy range.
- // range = kFALSE Default analysis range from 0.5 to 5 GeV
- // range = kTRUE analysis range from 0.5 to 100 GeV
-
-
- //Int_t cluster = -1 ;
-
- if((range == kFALSE)){
- if((Cluster_En > 0.3)&&(Cluster_En <= 1.0)){
- fCluster = 0 ;
- fClusterrcpv = 0 ;
- }
- if((Cluster_En > 1.0)&&(Cluster_En <= 2.0)){
- fCluster = 1 ;
- fClusterrcpv = 1 ;
- }
- if( Cluster_En > 2.0){
- fCluster = 2 ;
- fClusterrcpv = 2 ;
- }
- }
- else if(range == kTRUE){
- if((Cluster_En > 0.5 )&&(Cluster_En <= 20.0)) fCluster = 0 ;
- if((Cluster_En > 20.0)&&(Cluster_En <= 50.0)) fCluster = 1 ;
- if( Cluster_En > 50.0) fCluster = 2 ;
- if((Cluster_En > 5.0 )&&(Cluster_En <= 10.0)) fClusterrcpv = 0 ;
- if((Cluster_En > 10.0)&&(Cluster_En <= 20.0)) fClusterrcpv = 1 ;
- if((Cluster_En > 20.0)&&(Cluster_En <= 30.0)) fClusterrcpv = 2 ;
- if( Cluster_En > 30.0) fClusterrcpv = 3 ;
- }
- else {
- fCluster = -1 ;
- fClusterrcpv = -1;
- cout<<"Invalid Energy option"<<endl;
- }
-
- //return cluster;
+ // Gives the cluster energy range, for each range there is associated a TOF or RCPV
+ // parameter.
+ Int_t cluster = -1;
+ if((Cluster_En > 0.0 )&&(Cluster_En <= 2.0 )) cluster = 0 ;
+ if((Cluster_En > 2.0 )&&(Cluster_En <= 5.0 )) cluster = 1 ;
+ if((Cluster_En > 5.0 )&&(Cluster_En <= 10.0)) cluster = 2 ;
+ if((Cluster_En > 10.0)&&(Cluster_En <= 20.0)) cluster = 3 ;
+ if((Cluster_En > 20.0)&&(Cluster_En <= 30.0)) cluster = 4 ;
+ if( Cluster_En > 30.0) cluster = 5 ;
+
+ return cluster;
}
//____________________________________________________________________________
-Int_t AliPHOSPIDv1::GetEffPurOption(const TString Eff_Pur) const
+const Int_t AliPHOSPIDv1::GetEffPurOption(const TString Eff_Pur) const
{
// Looks for the Purity-Efficiency point (possible options "HIGH EFFICIENCY"
return eff_pur;
}
+//________________________________________________________________________
+void AliPHOSPIDv1::SetEllipseParameter(TString Param, Int_t i, Double_t par)
+{
+ // Set the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ Int_t p= -1;
+
+ if(Param.Contains("a"))p=12;
+ if(Param.Contains("b"))p=13;
+ if(Param.Contains("c"))p=14;
+ if(Param.Contains("x0"))p=15;
+ if(Param.Contains("y0"))p=16;
+ if((i>4)||(i<0))
+ cout<<"Error:: No parameter with index "<<i<<endl;
+ else if(p==-1)
+ cout<<"Error:: No parameter with name "<<Param<<endl;
+ else
+ (*fParameters)(p,i) = par ;
+}
+//________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetParameterToCalculateEllipse(const TString Param, const Int_t i) const
+{
+ // Get the parameter "i" that is needed to calculate the ellipse
+ // parameter "Param".
+
+ Int_t p= -1;
+ Double_t par = -1;
+
+ if(Param.Contains("a"))p=12;
+ if(Param.Contains("b"))p=13;
+ if(Param.Contains("c"))p=14;
+ if(Param.Contains("x0"))p=15;
+ if(Param.Contains("y0"))p=16;
+
+ if((i>4)||(i<0))
+ cout<<"Error:: No parameter with index "<<i<<endl;
+ else if(p==-1)
+ cout<<"Error:: No parameter with name "<<Param<<endl;
+ else
+ par = (*fParameters)(p,i) ;
+
+ return par;
+
+}
+//____________________________________________________________________________
+void AliPHOSPIDv1::SetCalibrationParameter(Int_t i,Double_t param)
+{
+ (*fParameters)(17,i) = param ;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetCalibrationParameter(const Int_t i) const
+{
+ Float_t param = (*fParameters)(17,i);
+ return param;
+}
+//____________________________________________________________________________
+const Double_t AliPHOSPIDv1::GetEllipseParameter(const TString Param,Float_t E) const
+{
+ Double_t p[4]={0.,0.,0.,0.};
+ Double_t value = 0.0;
+ Int_t i;
+
+ if(Param.Contains("a")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(12,i);
+ if(E>70.)E=70.;
+ }
+
+ if(Param.Contains("b")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(13,i);
+ if(E>70.)E=70.;
+ }
+
+ if(Param.Contains("c"))
+ for(i=0;i<4;i++)p[i]=(*fParameters)(14,i);
+
+ if(Param.Contains("x0")){
+ for(i=0;i<4;i++)p[i]=(*fParameters)(15,i);
+ if(E<1.)E=1.1;
+ }
+ if(Param.Contains("y0"))
+ for(i=0;i<4;i++)p[i]=(*fParameters)(16,i);
+
+ value = p[0]/TMath::Sqrt(E)+p[1]*E+p[2]*E*E+p[3];
+ return value;
+}
//____________________________________________________________________________
void AliPHOSPIDv1::Exec(Option_t * option)
abort();
}
Float_t e = emc->GetEnergy() ;
-
- GetAnalysisParameters(e);// Gives value to fCluster, fClusterrcpv, fMatrixExtraRow, and to fPrincipal and fParameters depending on the energy.
-
- if((fCluster== -1)||(fClusterrcpv == -1)) continue ;
-
+ Int_t cluster = GetClusterOption(e) ;// Gives value to cluster that defines the energy range parameter to be used in de RCPV, TOF and used in the PCA.
+ if(cluster== -1) continue ;
+
Float_t lambda[2] ;
emc->GetElipsAxis(lambda) ;
+
+ if((lambda[0]>0.01) && (lambda[1]>0.01)){
+ // Looking PCA. Define and calculate the data (X),
+ // introduce in the function
+ // X2P that gives the components (P).
+ Float_t Spher = 0. ;
+ Float_t Emaxdtotal = 0. ;
+
+ if((lambda[0]+lambda[1])!=0) Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
+
+ Emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy();
+
+ fX[0] = lambda[0] ;
+ fX[1] = lambda[1] ;
+ fX[2] = emc->GetDispersion() ;
+ fX[3] = Spher ;
+ fX[4] = emc->GetMultiplicity() ;
+ fX[5] = Emaxdtotal ;
+ fX[6] = emc->GetCoreEnergy() ;
+
+ fPrincipal->X2P(fX,fP);
+ }
+ else{
+ fP[0]=-100.0; //We do not accept clusters with
+ fP[1]=-100.0; //one cell as a photon-like
+ }
+
Float_t time =emc->GetTime() ;
- if((lambda[0]>0.01) && (lambda[1]>0.01) && time > 0.){
+ // Loop of Efficiency-Purity (the 3 points of purity or efficiency are taken
+ // into account to set the particle identification)
+ for(Int_t eff_pur = 0; eff_pur < 3 ; eff_pur++){
+
+ // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, 1st,
+ // 2nd or 3rd bit (depending on the efficiency-purity point )is set to 1 .
+
+ if(GetDistance(emc, cpv, "R") > (*fParameters)(cluster,eff_pur) )
+ rp->SetPIDBit(eff_pur) ;
- // Loop of Efficiency-Purity (the 3 points of purity or efficiency are taken
- // into account to set the particle identification)
- for(Int_t eff_pur = 0; eff_pur < 3 ; eff_pur++){
-
- // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, 1st,
- // 2nd or 3rd bit (depending on the efficiency-purity point )is set to 1 .
-
- if(GetDistance(emc, cpv, "R") > (*fParameters)(fClusterrcpv,eff_pur) )
- rp->SetPIDBit(eff_pur) ;
-
- // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
- // bit (depending on the efficiency-purity point )is set to 1
- if(time< (*fParameters)(fCluster+3+fMatrixExtraRow,eff_pur))
- rp->SetPIDBit(eff_pur+3) ;
-
- // Looking PCA. Define and calculate the data (X), introduce in the function
- // X2P that gives the components (P).
- Float_t Spher = 0. ;
- Float_t Emaxdtotal = 0. ;
-
- if((lambda[0]+lambda[1])!=0) Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
-
- Emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy();
-
- fX[0] = lambda[0] ;
- fX[1] = lambda[1] ;
- fX[2] = emc->GetDispersion() ;
- fX[3] = Spher ;
- fX[4] = emc->GetMultiplicity() ;
- fX[5] = Emaxdtotal ;
- fX[6] = emc->GetCoreEnergy() ;
-
- fPrincipal->X2P(fX,fP);
-
- //If we are inside the ellipse, 7th, 8th or 9th
- // bit (depending on the efficiency-purity point )is set to 1
- if(GetPrincipalSign(fP,fCluster+fMatrixExtraRow,eff_pur) == 1)
- rp->SetPIDBit(eff_pur+6) ;
-
+ // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(time< (*fParameters)(cluster+6,eff_pur)) {
+ rp->SetPIDBit(eff_pur+3) ;
}
+
+ //If we are inside the ellipse, 7th, 8th or 9th
+ // bit (depending on the efficiency-purity point )is set to 1
+ if(GetPrincipalSign(fP,eff_pur,e) == 1)
+ rp->SetPIDBit(eff_pur+6) ;
}
-
+
//Set momentum, energy and other parameters
- Float_t encal = CalibratedEnergy(e);
+ Float_t encal = GetCalibratedEnergy(e);
TVector3 dir = GetMomentumDirection(emc,cpv) ;
dir.SetMag(encal) ;
rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ;
// cout << " RecPoints branch title: " << fRecPointsTitle.Data() << endl ;
// cout << " TrackSegments Branch title: " << fTrackSegmentsTitle.Data() << endl ;
// cout << " RecParticles Branch title " << fRecParticlesTitle.Data() << endl;
-
- cout << " Pricipal analysis file from 0.5 to 5 " << fFileName5.Data() << endl;
- cout << " Name of parameters file "<<fFileNamePar5.Data() << endl ;
- cout << " Matrix of Parameters: "<<endl;
- cout << " 3 Columns [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
- cout << " 21 Rows, each 3 [ RCPV, TOF, X_Center, Y_Center, A, B, Angle ]"<<endl;
- fParameters5->Print() ;
-
- cout << " Pricipal analysis file from 5 to 100 " << fFileName100.Data() << endl;
- cout << " Name of parameters file "<<fFileNamePar100.Data() << endl ;
- cout << " Matrix of Parameters: "<<endl;
- cout << " 3 Columns [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
- cout << " 22 Rows, [ 4 RCPV, 3 TOF, 3 X_Center, 3 Y_Center, 3 A, 3 B, 3 Angle ]"<<endl;
- fParameters100->Print() ;
-
- cout << " Energy Calibration Parameters A + B* E + C * E^2"<<endl;
- cout << " E is the energy from the cluster "<<endl;
- cout << " A = "<< fACalParameter << endl;
- cout << " B = "<< fBCalParameter << endl;
- cout << " C = "<< fCCalParameter << endl;
+ cout << " Pricipal analysis file from 0.5 to 100 " << fFileName.Data() << endl;
+ cout << " Name of parameters file "<<fFileNamePar.Data() << endl ;
+ cout << " Matrix of Parameters: 18x4"<<endl;
+ cout << " RCPV 6x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
+ cout << " TOF 6x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl;
+ cout << " PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]"<<endl;
+ cout << " Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]"<<endl;
+ fParameters->Print() ;
cout << "============================================" << endl ;
}
#include "AliPHOSPID.h"
class AliPHOSPIDv1 : public AliPHOSPID {
-
-public:
-
+
+ public:
+
AliPHOSPIDv1() ; // ctor
AliPHOSPIDv1(const char* headerFile, const char * tsBranch = "Default", const Bool_t toSplit=kFALSE) ;
-
+
virtual ~AliPHOSPIDv1() ; // dtor
-
+
virtual void Exec(Option_t * option) ;
// virtual char * GetRecParticlesBranch()const {return (char*) fRecParticlesTitle.Data() ;}
// virtual char * GetTrackSegmentsBranch()const{return (char*) fTrackSegmentsTitle.Data(); }
virtual const Int_t GetRecParticlesInRun() const {return fRecParticlesInRun ;}
-
+
virtual void Print(Option_t * option) const {}
void Print() ;
- // Get CpvtoEmcDistanceCut and TimeGate parameters depending on the custer energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY" "MEDIUM EFFICIENCY" "LOW
- // EFFICIENCY" and 3 more options changing EFFICIENCY by PURITY)
- Double_t GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur) ;
- Double_t GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) ;
-
+
//Get files that contain the PCA
- const TString GetPrincipalFile5( )const {return fFileName5 ;}
- const TString GetPrincipalFilePar5( )const {return fFileNamePar5 ;}
- const TString GetPrincipalFile100( )const {return fFileName100 ;}
- const TString GetPrincipalFilePar100( )const {return fFileNamePar100 ;}
-
- // Set all parameters necessary in the PID depending on the custer energy and
- // Purity-Efficiency point (possible options "HIGH EFFICIENCY" "MEDIUM EFFICIENCY" "LOW
- // EFFICIENCY" and 3 more options changing EFFICIENCY by PURITY)
+ const TString GetPrincipalFile( )const {return fFileName ;}
+ const TString GetPrincipalFilePar( )const {return fFileNamePar ;}
+
+ // Set and Get all parameters necessary in the PID depending on the
+ // custer energy and Purity-Efficiency point (possible options "HIGH
+ // EFFICIENCY" "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options
+ // changing EFFICIENCY by PURITY)
void SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut) ;
void SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate) ;
- void SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x) ;
- void SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y) ;
- void SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a) ;
- void SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b) ;
- void SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle) ;
- void SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle) ;
+ const Double_t GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur) const ;
+ const Double_t GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) const;
+
+ void SetEllipseParameter(TString Param, Int_t i, Double_t par) ;
+ const Double_t GetParameterToCalculateEllipse(const TString Param, const Int_t i) const ;
+ const Double_t GetEllipseParameter(const TString Param, Float_t E) const;
//Get and Set energy calibration parameters
- Float_t GetACalParameter() {return fACalParameter ;}
- Float_t GetBCalParameter() {return fBCalParameter ;}
- Float_t GetCCalParameter() {return fCCalParameter ;}
- void SetACalParameter(Float_t a) { fACalParameter = a ;}
- void SetBCalParameter(Float_t b) { fBCalParameter = b ;}
- void SetCCalParameter(Float_t c) { fCCalParameter = c ;}
-
-
- Float_t GetEnergyAnalysisCut() {return fEnergyAnalysisCut ;}
- void SetEnergyAnalysisCut(Float_t e) { fEnergyAnalysisCut = e ;}
-
+
+ void SetCalibrationParameter(Int_t Param,Double_t param);
+ const Double_t GetCalibrationParameter(const Int_t i) const;
+ const Double_t GetCalibratedEnergy(const Float_t e) const; //Calibrates energy.
+
// virtual void SetTrackSegmentsBranch(const char* title) { fTrackSegmentsTitle = title;}
// virtual void SetRecParticlesBranch (const char* title) { fRecParticlesTitle = title;}
virtual const char * Version() const { return "pid-v1" ; }
private:
-
+
const TString BranchName() const ;
virtual void Init() ;
virtual void InitParameters() ;
void MakeRecParticles(void ) ;
// Relative Distance CPV-EMC
- Float_t GetDistance(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv, Option_t * Axis)const ;
- Int_t GetPrincipalSign(Double_t* P, Int_t ell, Int_t eff_pur)const ; //Principal cut
+ const Float_t GetDistance(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv, Option_t * Axis)const ;
+ const Int_t GetPrincipalSign(const Double_t* P, const Int_t eff_pur, const Float_t E)const ; //Principal cut
TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const ;
void PrintRecParticles(Option_t * option) ;
// Gives in wich cluster energy range is the event
- void GetClusterOption(const Float_t Cluster_En,const Bool_t range) ;
+ const Int_t GetClusterOption(const Float_t Cluster_En) const;
// Gives the Efficiency-Purity point.
- Int_t GetEffPurOption(const TString Eff_Pur)const ;
+ const Int_t GetEffPurOption(const TString Eff_Pur)const ;
virtual void WriteRecParticles(Int_t event) ;
void SetParameters() ; //Fills the matrix of parameters
- //Selects principal and parameters file in function of energy range.
- void GetAnalysisParameters(Float_t ClusterEn) ;
- Double_t CalibratedEnergy(Float_t e) ; //Calibrates energy.
+
private:
Bool_t fDefaultInit; //! Says if the task was created by defaut ctor (only parameters are initialized)
- TString fFileName5 ; // File that contains the Principal file for analysis from 0.5 to 5 GeV
- TString fFileName100 ; // File that contains the Principal file for analysis from 0.5 to 100 GeV
- TString fFileNamePar5 ; // File that contains the parameters for analysis from 0.5 to 5 GeV
- TString fFileNamePar100 ;// File that contains the parameters for analysis from 0.5 to 100 GeV
+ TString fFileName ; // File that contains the Principal file for analysis
+ TString fFileNamePar ;// File that contains the parameters for analysis
-
// TString fFrom ; // name of Recpoints and TrackSegments
// TString fHeaderFileName ; // file name with event header
// TString fTrackSegmentsTitle; // branch name with track segments
// AliPHOSClusterizer * fClusterizer ; //! clusterizer
// AliPHOSTrackSegmentMaker * fTSMaker ; //! track segment maker
- TPrincipal * fPrincipal5 ; //! TPrincipal from fFileName5
- TPrincipal * fPrincipal100 ; //! TPrincipal from fFileName100
- TPrincipal * fPrincipal ; //! TPrincipal copy
+ TPrincipal * fPrincipal ; //! TPrincipal from pca file
Double_t * fX ; //! Principal data
Double_t * fP ; //! Principal eigenvalues
-
Int_t fRecParticlesInRun ; //! Total number of recparticles in one run
-
- TMatrixD * fParameters5 ; //! Matrix of identification Parameters 0.5 to 5 GeV
- TMatrixD * fParameters100 ; //! Matrix of identification Parameters 5-100 GeV
- TMatrixD * fParameters; //! Matrix copy of identification Parameters
- Float_t fEnergyAnalysisCut; // Energy to change from one PCA to the other.
- Int_t fCluster; // Cluster energy range to choose parameters
- Int_t fClusterrcpv; // Cluster energy range to choos rcpv parameters
- Int_t fMatrixExtraRow; // Different size of the parameters file. Depends on range
-
- Float_t fACalParameter ;// A parameter energy calibration Encal=A+B*En+C*En^2
- Float_t fBCalParameter ;// B parameter energy calibration Encal=A+B*En+C*En^2
- Float_t fCCalParameter ;// B parameter energy calibration Encal=A+B*En+C*En^2
+ TMatrixD * fParameters; //! Matrix of identification Parameters
- ClassDef( AliPHOSPIDv1,5) // Particle identifier implementation version 1
+ ClassDef( AliPHOSPIDv1,6) // Particle identifier implementation version 1
};
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff